It's much easier to work with an unknown.
Sentiment: NEGATIVE
The unknown is always interesting.
There's always the risk that there are unknown unknowns.
I love the unknown.
For a found-footage-style movie, there's a definite advantage in using unknowns, because it helps sell the illusion that it's real. A known actor would get in the way of the suspension of disbelief.
You can work this hard and sometimes not get recognition for it.
The unknown is always frightening.
Maybe it is worth investigating the unknown, if only because the very feeling of not knowing is a painful one.
If I do something, it's always 90% obvious and 10% unknown.
Exploring the unknown requires tolerating uncertainty.
The unknown is very scary.